Register
the mass number is an average of the masses of all naturally occurring isotopes of an element true or false
178k views
4 votes
the mass number is an average of the masses of all naturally occurring isotopes of an element true or false

User Nikita Kraev
by
8.1k points

1 Answer

1 vote
False. The mass number is the sum of the protons and neutrons in the most common isotope. The atomic weight or atomic mass is the average of the masses of the naturally occurring isotopes.
User Thudner
by
7.8k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

Compare and contrast an electric generator and a battery??
How do you balance __H2SO4 + __B(OH)3 --> __B2(SO4)3 + __H2O
Can someone complete the chemical reactions, or write which one do not occur, and provide tehir types? *c2h4+h2o *c3h8 + hcl *c2h2+br2 *c4h10+br2 *c3h6+br2
As an object’s temperature increases, the ____________________ at which it radiates energy increases.
What is the evidence of a chemical reaction when the fireworks go off
Link Copied!